Methyl 4-bromo-3-hydroxy-5-methoxybenzoate CAS 876170-40-0
| CAS No. | 876170-40-0 |
| Molecular Formula | C9H9BrO4 |
| Molecular Weight | 261.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 4-bromo-3-hydroxy-5-methoxybenzoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Methyl 4-bromo-3-hydroxy-5-methoxybenzoate (CAS 876170-40-0) is a high-purity analytical reference standard with the molecular formula C9H9BrO4 and a molecular weight of 261.07 g/mol.
The molecular framework of Methyl 4-bromo-3-hydroxy-5-methoxybenzoate (C9H9BrO4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H9BrO4 |
| Molecular Weight | 261.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Methyl Standards
- 3-bromo-2,5-dimethoxybenzoic acid (CAS 100940-12-3)
- Methyl 3-bromo-4-hydroxy-5-methoxybenzoate, 97% (CAS 108249-43-0)
- 3-Bromo-5H-cyclopenta[1,2-b:5,4-b']dipyridin-5-one (CAS 1182844-62-7)
- 5-Bromo-2-ethoxy-4-methyl-3-nitropyridine (CAS 1215206-58-8)
- 2-(3-Bromo-4-methoxyphenyl)-2-hydroxyacetic acid (CAS 1226125-24-1)
- 4-Bromo-5-ethoxy-2-nitroaniline (CAS 1242336-59-9)
- 5-Bromo-2-isopropoxy-3-nitropyridine (CAS 1248216-10-5)
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Recommended Standards
- Methyl 2-bromo-5-hydroxy-3-methoxybenzoate (CAS 2383014-95-5)
- Methyl 4-bromo-5-hydroxy-2-methoxybenzoate (CAS 2091631-51-3)
- ETHYL 4-BROMO-3,5-DIHYDROXYBENZOATE (CAS 350035-53-9)
- Methyl 5-bromo-2-hydroxy-4-methoxybenzoate (CAS 39503-52-1)
- 2,3-Dihydro-1-benzofuran-3-carbonyl chloride (CAS 1343949-08-5)
- 4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carbaldehyde (CAS 1710293-81-4)
- 1H-Imidazole-5-thiol (CAS 24748-68-3)
- N-methoxy-n-methylpyrimidine-4-carboxamide (CAS 1223452-39-8)
- 2-Amino-6-(aminomethyl)isonicotinonitrile (CAS 1393574-62-3)
- 4-methoxy-1-benzofuran-2-carboxylic acid (CAS 50551-59-2)
- 13-cis-Retinal (CAS 472-86-6)
- (2S,3R,4S,5R)-2-((5-bromo-4-chloro-1H-indol-3-yl)oxy)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 518033-33-5)
- (E)-3-((4-(phenylamino)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonic acid (CAS 57322-42-6)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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